[doughboy]

Originally Posted by Proctor750

This period of pure excellence only lasts for a few miles but whatever causes this... I wish I could make it permanent.

Has nobody else experienced this?

Yes I notice the sound changes a lot depending on the point you are in of a warm up / cool down cycle.

Kind of warm but cooling a little is good, but soon gone as you say!

[cb804]

If using the Bimmerlink app and you select valves open, is that setting stored always or do you need to use the app each time you start the car.

[Tanckx]

Apologies I know it's not directly related to OP but is ASD on in efficient mode? Or only in sport and sport + ?

[///M Houbi]

Originally Posted by cb804

If using the Bimmerlink app and you select valves open, is that setting stored always or do you need to use the app each time you start the car.

Not stored. You need the app active and connected all the time.

Permanently "stored" is only possible via DME ECU flash or alternatively using third party hardware modules (valve controllers).

[DrGadget]

I decided Carly for BMW Pro is just too much trouble to get connected to their proprietary adapter (it hates Bluetooth on my Pixel 2), so I now use an iCar Pro adapter (about AUD30/USD20) and the OBD.Maven app (free from Play Store). That stated, this morning I got Carly for BMW connected by changing the Pixel 2 Settings>>System>>Advanced>>Developer options>>Bluetooth AVRCP set to 1.6 rather than the default 1.4. Worked flawlessly coding rear inner and outer LCI DRLs on.

The iCar Pro will connect using an Android or iOS smartphone/tablet and will use WiFi or Bluetooth. I use BT and it connects instantly. Moreover, I can add it as a trusted device to Smartlock .... meaning the connection stays live even if the phone's display is off.

Opening the rear exhaust flapper actuator valve is a one click operation.

No need to buy a dummy plug (BMW Part No. 18302411427) with the need to tie a piece of wire to hold the actuator in the open position once you have opened it electronically.

[FreeDarko]

Originally Posted by DrGadget

I decided Carly for BMW Pro is just too much trouble to get connected to their proprietary adapter (it hates Bluetooth on my Pixel 2), so I now use an iCar Pro adapter (about AUD30/USD20) and the OBD.Maven app (free from Play Store).

The iCar Pro will connect using an Android or iOS smartphone/tablet and will use WiFi or Bluetooth. I use BT and it connects instantly. Moreover, I can add it as a trusted device to Smartlock .... meaning the connection stays live even if the phone's display is off.

Opening the rear exhaust flapper actuator valve is a one click operation.

No need to buy a dummy plug (BMW Part No. 18302411427) with the need to tie a piece of wire to hold the actuator in the open position once you have opened it electronically.

Are you saying that you can open it once and it will stay open even after you turn off and restart the car?

[DrGadget]

Originally Posted by FreeDarko

Are you saying that you can open it once and it will stay open even after you turn off and restart the car?

The flap will stay open for as long as you keep the app connected to the car. You can turn the car ignition off and it will stay open on this basis. But, if you leave the car with your phone and connection drops, the flap will close when you deactivate the canbus.

[cb804]

Bumping up this thread with another question...

Has anyone used the Burger Can Flap Module to keep the valves open?

https://x-ph.com/bms-f-series-can-flap-module/

It looks super easy... just plug into OBDII port and all the settings are changed via the BC function on the turn signal.

[AlpsRider]

One easy way to keep the flap open is to do a BM3 tune and set the valve to be open in Sport modes but be normal in Efficient mode. You just press the mode button to open and close it.

[Kelvin1000]

Originally Posted by AlpsRider

One easy way to keep the flap open is to do a BM3 tune and set the valve to be open in Sport modes but be normal in Efficient mode. You just press the mode button to open and close it.

This.

[brad65ford]

Originally Posted by Proctor750

I've had my connectors unplugged for months now and everything sounds great. The cold start is atrocious though.

One thing I noticed is the car once warmed up does all of the burbles I hate so much, but after a spirited drive and parking the car for maybe 15 min something magical happens...

I get back into the car and start it and immediately notice a MUCH raspier tone. Taking off in 1st slowly sounds AMAZING - very resonant and reminiscent of the S54.
The burbles on decel are completely gone as well.

This period of pure excellence only lasts for a few miles but whatever causes this... I wish I could make it permanent.

Has nobody else experienced this?

And to think I was the only one having that same situation lol. Its annoying that its not consistent though.

Regarding everyone talking about how to keep them open. Yes unplug once open and your done. I don't leave them like that since I like having the option to close them if I want. Personally I get in the habit of pushing ignition on once with out foot on pedal then press M2 then press gas pedal to the floor. This forces exhaust to stay open on start up. I like gts roar :-)

[Vulpe]

Originally Posted by brad65ford

Personally I get in the habit of pushing ignition on once with out foot on pedal then press M2 then press gas pedal to the floor. This forces exhaust to stay open on start up. I like gts roar :-)

Does that work for different models? I've tried that in my 4.

-Accessory on
-Switch to Sport
-Tap throttle (Flaps open)
-Start

Then the flaps automatically close once you try to start the engine.

[inTgr8r]

Originally Posted by SUB-ZERO

BimmerCode/BimmerLink

Can you explain please.
Are they be coded to a fixed position?
Or does Bimmercode control on the fly

Thanks

[f87CSdrifterential]

Originally Posted by inTgr8r

Can you explain please.
Are they be coded to a fixed position?
Or does Bimmercode control on the fly

Thanks

You can open and close them through the app but the app must remain open for it to be in control, otherwise it reverts to stock settings.
Some have said it times out after 15 minutes as well.

I have an Akrapovic and I bought the CG VSC-2. 15-20 minute install, preset buttons (I did automatic for factory default settings and open), it's programmed to the home link for open and close control.

The Akrapovic came with its own sound kit that was needlessly complex to install, involving full trunk interior disassembly and running wires through body grommets.

Here is a multi page rabbit hole of discussion.

https://f80.bimmerpost.com/forums/sh....php?t=1099274

[f87CSdrifterential]

Originally Posted by AndrewC1989

https://www.cgprecision.com/#!/VSC-2...egory=34601196

This.

[inTgr8r]

Originally Posted by AndrewC1989

https://www.cgprecision.com/#!/VSC-2...egory=34601196

Originally Posted by f87CSdrifterential

This.

After looking it up, I agree.
Love to be able to control from the homelink buttons; I have two spare

[squixs]

https://www.mosselmanturbo.com/en/ic...xhaust-valve-1

[pablom2c]

Has anyone noticed increased throttle/turbo lag keeping the valves open? I tried with Carly app leaving the exhaust flap open and I noticed more lag, I have to experiment more but maybe its in my head?

[inTgr8r]

Originally Posted by squixs

https://www.mosselmanturbo.com/en/ic...xhaust-valve-1

I saw this one.
What I don't like is you have to leave it in the OBD port plus you loose steering wheel functions.

[squixs]

Originally Posted by inTgr8r

I saw this one.
What I don't like is you have to leave it in the OBD port plus you loose steering wheel functions.

Originally Posted by inTgr8r

I saw this one.
What I don't like is you have to leave it in the OBD port plus you loose steering wheel functions.

It looks to me that it only works when cruise control button is deactivated, so I don't think you will lose any functionality.

[f87CSdrifterential]

I have not read a written rule or suggestion to do so, but I personally only open or close the valves at idle if not in automatic mode so there is no extra flow of exhaust hindering movement and possibly leading to premature valve failure.

If I am at speed I put it in neutral and let the revs drop to idle before activating the valves.

Does anyone else do this?